<template>
  <div class="login">
    <img v-if="false" :src="logo" class="login-logo" />
    <div style="width: 40%;height: 100%">
      <div class="login-form-box">
        <el-form ref="loginRef" :model="loginForm" :rules="loginRules" class="login-form">
          <el-tabs v-model="activeName" class="demo-tabs" >
            <el-tab-pane label="密码登录" ></el-tab-pane>
          </el-tabs>
          <el-form-item prop="username">
            <el-input
                v-model="loginForm.username"
                type="text"
                size="large"
                auto-complete="off"
                placeholder="账号"
            >
              <template #prefix><svg-icon icon-class="user" class="el-input__icon input-icon" /></template>
            </el-input>
          </el-form-item>
          <el-form-item prop="password">
            <el-input
                v-model="loginForm.password"
                type="password"
                size="large"
                auto-complete="off"
                placeholder="密码"
                @keyup.enter="handleLogin"
                show-password
            >
              <template #prefix><svg-icon icon-class="password" class="el-input__icon input-icon" /></template>
            </el-input>
          </el-form-item>
          <el-form-item prop="code" v-if="captchaEnabled">
            <el-input
                v-model="loginForm.code"
                size="large"
                auto-complete="off"
                placeholder="验证码"
                style="width: 63%"
                @keyup.enter="handleLogin"
            >
              <template #prefix><svg-icon icon-class="validCode" class="el-input__icon input-icon" /></template>
            </el-input>
            <div class="login-code">
              <img :src="codeUrl" @click="getCode" class="login-code-img"/>
            </div>
          </el-form-item>
          <el-checkbox v-model="loginForm.rememberMe" style="margin:0px 0px 25px 0px;">记住密码</el-checkbox>
          <el-form-item style="width:100%;">
            <el-button
                :loading="loading"
                size="large"
                type="primary"
                style="width:100%;"
                @click.prevent="handleLogin"
            >
              <span v-if="!loading">登 录</span>
              <span v-else>登 录 中...</span>
            </el-button>
            <div style="float: right;" v-if="register">
              <router-link class="link-type" :to="'/register'">立即注册</router-link>
            </div>
          </el-form-item>
        </el-form>
      </div>
    </div>


    <!--  底部  -->
    <copy-right v-if="false"></copy-right>
  </div>
</template>

<script setup>
import { getCodeImg } from "@/api/login";
import Cookies from "js-cookie";
import { encrypt, decrypt } from "@/utils/jsencrypt";
import useUserStore from '@/store/modules/user'
import logo from '@/assets/logo/logo.svg'
const userStore = useUserStore()
const router = useRouter();
const { proxy } = getCurrentInstance();

const loginForm = ref({
  username: "",
  password: "",
  rememberMe: false,
  code: "",
  uuid: ""
});

const loginRules = {
  username: [{ required: true, trigger: "blur", message: "请输入您的账号" }],
  password: [{ required: true, trigger: "blur", message: "请输入您的密码" }],
  code: [{ required: true, trigger: "change", message: "请输入验证码" }]
};

const codeUrl = ref("");
const loading = ref(false);
// 验证码开关
const captchaEnabled = ref(true);
// 注册开关
const register = ref(false);
const redirect = ref(undefined);

// cookie key
const USERNAME = "edge-username";
const PASSWORD = "edge-password";
const REMEMBER_ME = "edge-rememberMe";

function handleLogin() {
  proxy.$refs.loginRef.validate(valid => {
    if (valid) {
      loading.value = true;
      // 勾选了需要记住密码设置在 cookie 中设置记住用户名和密码
      if (loginForm.value.rememberMe) {
        Cookies.set(USERNAME, loginForm.value.username, { expires: 30 });
        Cookies.set(PASSWORD, encrypt(loginForm.value.password), { expires: 30 });
        Cookies.set(REMEMBER_ME, loginForm.value.rememberMe, { expires: 30 });
      } else {
        // 否则移除
        Cookies.remove(USERNAME);
        Cookies.remove(PASSWORD);
        Cookies.remove(REMEMBER_ME);
      }
      // 调用action的登录方法
      userStore.login(loginForm.value).then(() => {
        router.push({ path: redirect.value || "/" });
      }).catch(() => {
        loading.value = false;
        // 重新获取验证码
        if (captchaEnabled.value) {
          getCode();
        }
      });
    }
  });
}

function getCode() {
  getCodeImg().then(res => {
    captchaEnabled.value = res.captchaEnabled === undefined ? true : res.captchaEnabled;
    if (captchaEnabled.value) {
      codeUrl.value = "data:image/gif;base64," + res.img;
      loginForm.value.uuid = res.uuid;
    }
  });
}

function getCookie() {
  const username = Cookies.get(USERNAME);
  const password = Cookies.get(PASSWORD);
  const rememberMe = Cookies.get(REMEMBER_ME);
  loginForm.value = {
    username: username === undefined ? loginForm.value.username : username,
    password: password === undefined ? loginForm.value.password : decrypt(password),
    rememberMe: rememberMe === undefined ? false : Boolean(rememberMe)
  };
}

getCode();
getCookie();
</script>

<style lang='scss' scoped>
.login {
  display: flex;
  //justify-content: center;
  //align-items: center;
  height: 100%;
  background-size: cover;
  flex-direction: row;
}
.title {
  margin: 0px auto 30px auto;
  text-align: center;
  color: #707070;
}

.login-form {
  border-radius: 6px;
  //background: #ffffff;
  width: 400px;
  padding: 25px 25px 5px 25px;
  .el-input {
    height: 40px;
    input {
      height: 40px;
    }
  }
  .input-icon {
    height: 39px;
    width: 14px;
    margin-left: 0px;
  }
}
.login-tip {
  font-size: 13px;
  text-align: center;
  color: #bfbfbf;
}
.login-code {
  width: 33%;
  height: 40px;
  float: right;
  img {
    cursor: pointer;
    vertical-align: middle;
  }
}

.login-code-img {
  height: 40px;
  padding-left: 12px;
}
.copyright{
  color: gray;
  position: fixed;
  bottom: 0;
  background: none;
}
.login-form-box{
  height: 100%;
  //width: 50%;
  //background-color: #FFFFFF;
  display: flex;
  justify-content: center;
  align-items: center;
  background-color:rgba(255, 255, 255, 0.5);
}
.login-logo{
  position: absolute;
  padding-top: 17px;
  padding-left: 32px;
}
</style>
